Read Sony XM-1004GX / XM-754SX Service Manual online
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SERVICE MANUAL
US Model
XM-754SX/1004GX
Canadian Model
AEP Model
UK Model
E Model
XM-1004GX
XM-754SX/1004GX
STEREO POWER AMPLIFIER
Other Specifications
Circuit system
OTL (output transformerless) circuit
Pulse power supply
Pulse power supply
Inputs
RCA pin jacks
High level input connector
High level input connector
Outputs
Speaker terminals
Speaker impedance
XM-754SX: 2 – 8
Ω
(stereo)
XM-1004GX: 1.3 – 8
Ω
(stereo)
4 – 8
Ω
(when used as a bridging amplifier)
Maximum outputs
Four speakers: 170 W
×
4 (at 4
Ω
)
Three speakers: 170 W
×
2 + 400 W
×
1 (at 4
Ω
)
Two speakers: 400 W
×
2 (at 4
Ω
)
Rated outputs (supply voltage at 14.4 V)
Four speakers:
75 W
75 W
×
4 (20 Hz – 20 kHz, 0.04% THD, at 4
Ω
)
100 W
×
2 (20 Hz – 20 kHz, 0.1% THD, at 2
Ω
)
Two speakers:
200 W
200 W
×
2 (20 Hz – 20 kHz, 0.1% THD, at 4
Ω
)
Frequency response
5 Hz – 100 kHz ( dB)
Harmonic distortion
0.005% or less (at 1 kHz, 4
Ω
)
Input level adjustment range
0.2 – 6.0 V (RCA pin jacks)
0.4 – 12.0 V (High level input)
0.4 – 12.0 V (High level input)
High-pass filter
50 – 300 Hz, –12 dB/oct
Low-pass filter
50 – 300 Hz, –12 dB/oct
Low boost
0 – 10 dB (40 Hz)
Phase shift adjustment range (XM-1004GX)
0° – 180° (at 40 Hz)
Power requirements
12 V DC car battery
(negative ground)
(negative ground)
Power supply voltage
10.5 – 16 V
Current drain
at rated output : 40 A (4
Ω
)
Remote input : 1.5 mA
Dimensions
Approx. 358
×
50
×
264 mm
(w/h/d) (14
1/8
×
2
×
10
1/2
in.) not incl.
projecting parts and controls
Mass
Approx. 3.5 kg (7 lb. 11 oz.) not incl. accessories
Supplied accessories
Mounting screws (4)
Design and specifications are subject to change without
notice.
notice.
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
75 watts per channel minimum continuous average power into
4 ohms, both channels driven from 20 Hz to 20 kHz with no more
than 0.04% total harmonic distortion per Car Audio Ad Hoc
Committee standards.
75 watts per channel minimum continuous average power into
4 ohms, both channels driven from 20 Hz to 20 kHz with no more
than 0.04% total harmonic distortion per Car Audio Ad Hoc
Committee standards.
+0.5
–3
Photo: XM-1004GX
Notes on Chip Component Replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
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TABLE OF CONTENTS
1. GENERAL
Location and Function of Controls .......................................... 3
Connections ............................................................................. 4
Connections ............................................................................. 4
2. DISASSEMBLY
2-1. Plate, Bottom ....................................................................... 6
2-2. Main Board Section ............................................................. 6
2-3. Main Board, Filter (F) Board, Filter (R) Board ................... 7
2-4. LED Board ........................................................................... 7
2-2. Main Board Section ............................................................. 6
2-3. Main Board, Filter (F) Board, Filter (R) Board ................... 7
2-4. LED Board ........................................................................... 7
3. ELECTRICAL ADJUSTMENT
...................................... 8
4. DIAGRAMS
4-1. Block Diagram ..................................................................... 9
4-2. Printed Wiring Board –Main Section– .............................. 11
4-3. Schematic Diagram –Main Section (1/2)– ........................ 12
4-4. Schematic Diagram –Main Section (2/2)– ........................ 13
4-5. Schematic Diagram –Filter (F), Filter (R),
4-2. Printed Wiring Board –Main Section– .............................. 11
4-3. Schematic Diagram –Main Section (1/2)– ........................ 12
4-4. Schematic Diagram –Main Section (2/2)– ........................ 13
4-5. Schematic Diagram –Filter (F), Filter (R),
LED Section– .................................................................... 14
4-6. Printed Wiring Boards –Filter (F), Filter (R),
LED Section– .................................................................... 15
5. EXPLODED VIEWS
5-1. Heat Sink (Main) Section .................................................. 16
5-2. Main Board Section ........................................................... 16
5-2. Main Board Section ........................................................... 16
6. ELECTRICAL PARTS LIST
......................................... 17
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SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
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